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. 2019 Sep 25;21(9):e14567. doi: 10.2196/14567

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©Amit Baumel, Frederick Muench, Stav Edan, John M Kane. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 25.09.2019.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Hourly usage pattern. Usage is presented by hour out of the total app usage; therefore, the sum of percentages within each category is 100%. Note: a subset of apps for which that data were available is included; “All apps” includes both categories and one app targeting happiness.